/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineCore/Public/Graph/MovieGraphNode.h
Sets the value of the dynamic property with the specified name. Note that the provided value must be the serialized representation of the value. Returns true upon success, else false.
bool SetDynamicPropertyValue ( const [FName](API\Runtime\Core\UObject\FName) PropertyName, const [FString](API\Runtime\Core\Containers\FString) & InNewValue )